CN207163369U - Valve length detection mechanism - Google Patents
Valve length detection mechanism Download PDFInfo
- Publication number
- CN207163369U CN207163369U CN201721208518.XU CN201721208518U CN207163369U CN 207163369 U CN207163369 U CN 207163369U CN 201721208518 U CN201721208518 U CN 201721208518U CN 207163369 U CN207163369 U CN 207163369U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- length detection
- valve
- height
- amesdial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of valve length detection mechanism, guide rod including being fixedly installed on base upper surface vertically, a sleeve is movably socketed with outside guide rod, an installation support arm is outwards fixedly connected with outside sleeve, installation support arm outer end is provided with a valve length detection amesdial, and face engine valve stem locating slot is set the detector of valve length detection amesdial straight down；Height adjustment mechanism is additionally provided between sleeve and guide rod, it is characterized in that, the height adjustment mechanism includes a height adjustment bolt, the nut portion and sleeve of the height adjustment bolt are installed and are connected to sleeve upper end with being coaxially disposed and can horizontally rotate, height regulation screwed hole straight down is coaxially arranged with the middle part of the guide rod upper surface, the height adjustment bolt screw thread coordinates in height regulation screwed hole.The utility model can conveniently realize the height regulation of valve length detection amesdial, and with simple in construction, it is easy to operate, adjust the advantages of reliable and stable.
Description
Technical field
The utility model part of automobile engine produces detection technique field, more particularly to a kind of valve length detection machine
Structure.
Background technology
Automobile engine can be converted into mechanical energy by the chemical energy of fuel or by other forms, be provided for automobile dynamic
Power, it is the heart of automobile, belongs to a kind of technology-intensive product.With China's expanding economy, to automobile demand amount and day
All auto industry is developed rapidly while increase, and people are to the performance requirement of automobile engine also more and more higher.
In automobile engine, inlet and exhaust valve is that the bar portion being integrated is coaxially disposed with round plate by a round plate and one
The component of composition, belong to one of automobile engine key components and parts, be the door of engine chamber, be engine working process
The key foundation part of middle sealing porting, for blocking gas channel, controls the gas exchanges of engine.In engine
In each course of work, inlet valve and exhaust valve are all respectively opened and closed once when valve opens and closes, and valve is born
The pressure of valve spring and pressure when taking a seat.Inlet valve and exhaust valve serve close particularly in compression and expansion stroke
Seal the effect of combustion chamber.Therefore, the quality of valve quality has important influence to engine performance and life-span.
Motion of the machining accuracy and structure of valve to engine valve actuating mechanism play the role of it is very important, while wherein
The overall dimensions of valve are the key parameters of valve, and it is both design basis and technique and detection benchmark, and it is almost and valve
All sites precision has substantial connection.Traditional air valve total length detection mode, which needs to rely on, largely manually uses slide measure
To complete, so allow for the facet before slide calliper rule behind cutting edge and contacted with valve large end face, measurement result is exactly a plane
To the distance of straight line.Because valve large end face is not processed or machining accuracy is low, surface shape error is big so that measurement
As a result error be present with valve physical length.Therefore existing detection technique, testing cost high efficiency is low, and easily by operating personnel
Factor influence, easily because human eye vision fatigue easily causes the unstability of detection, increase the error rate of product.It is difficult to meet
The product quality requirement of continuous improvement.
In order to solve the above problems, applicant considers to devise a kind of air valve total length detection means, including base, its feature
It is, the vertical positioning fixture of engine valve stem and valve length detection machine structure, the vertical positioning fixture of engine valve stem is provided with base
Including the engine valve stem for being arranged on a base upper surface positioning seat, engine valve stem positioning seat upper surface has one straight up
The engine valve stem locating slot opened up, engine valve stem locating slot are used for the upward positioning for realizing engine valve stem；Valve length detection
Mechanism includes being fixedly installed on the guide rod of base upper surface vertically, and a sleeve, sleeve are movably socketed with outside guide rod
The outer direction in face of engine valve stem positioning seat is horizontally outward fixedly connected with an installation support arm, installation support arm outer end face valve
A valve length detection amesdial is provided with above bar portion positioning seat, the detector of valve length detection amesdial is straight down
Face engine valve stem locating slot is set；Height adjustment mechanism is additionally provided between sleeve and guide rod, height adjustment mechanism can
Realize the height and position regulation of sleeve on the guide bar.
So, during detection, an air valve total length detection standard specimen is first prepared, the length of air valve total length detection standard specimen is total for valve
Valve length during long detection margin of tolerance minimum value, then bar portion that air valve total length is detected to standard specimen downwardly vertical are fixed to gas
In door rod portion locating slot, height adjustment mechanism is adjusted so that the detector lower end of valve length detection amesdial and air valve total length
Detection standard specimen upper surface contacts and adjusts zero；Then air valve total length detection standard specimen is removed, keeps valve length detection amesdial
Position is constant, and the bar portion of valve to be detected is downwardly vertical fixed in engine valve stem locating slot, makes its upper end end face gentle
End in contact detects under the detector of door length detection amesdial, reads valve length detection amesdial reading, you can according to valve
The length of overall length detection standard specimen converses air valve total length numerical value to be detected.Therefore with simple in construction, easy to operate, detection
The advantages that reliable.
But how valve length detection mechanism therein is specifically set, it can conveniently realize that height is adjusted, and with knot
Structure is simple, easy to operate, adjusts the advantages that reliable and stable, turns into and needs further to consider solve the problems, such as.
Utility model content
The technical problems to be solved in the utility model is：Valve length detection thousand can conveniently be realized by how providing one kind
Divide the height regulation of table, and it is simple in construction, it is easy to operate, adjust reliable and stable valve length detection mechanism.
In order to solve the above-mentioned technical problem, the utility model employs following technical scheme.
A kind of valve length detection mechanism, including the guide rod of base upper surface is fixedly installed on vertically, can outside guide rod
A sleeve is actively socketed with, the direction that engine valve stem positioning seat is faced outside sleeve is horizontally outward fixedly connected with an installation
Support arm, installation support arm outer end face engine valve stem positioning seat top are provided with a valve length detection amesdial, valve length
Face engine valve stem locating slot is set the detector of detection micrometer straight down；Height is additionally provided between sleeve and guide rod
Governor motion, it is characterised in that the height adjustment mechanism includes a height adjustment bolt, the spiral shell of the height adjustment bolt
Cap portion and sleeve are installed and are connected to sleeve upper end with being coaxially disposed and can horizontally rotate, coaxial in the middle part of the guide rod upper surface
Height regulation screwed hole straight down is provided with, the height adjustment bolt screw thread coordinates in height regulation screwed hole
It is interior.
So, height adjustment bolt need to only be rotated, you can coordinate by its screw thread between height regulation screwed hole
Height and position where changing height adjustment bolt, and then band moving sleeve realizes that upper-lower height is adjusted together.With simple in construction, tune
Save the advantages that convenient and swift reliable.
As optimization, the nut portion upper surface of the height adjustment bolt vertically offers the adjustment hole of regular polygon.
So, regulation spanner corresponding to convenient insertion is realized is adjusted to the height of height adjustment bolt, makes its simple in construction
The compact setting height(from bottom) for not influenceing to interfere amesdial, and it is easy to adjust.
As optimization, amesdial mounting hole is vertically provided with the middle part of the installation support arm, amesdial mounting hole aperture is gentle
The detection bar fixed part external diameter of door length detection amesdial is consistent and by the detection bar fixed part of valve length detection amesdial
Divide sandwiched in the inner, being vertically provided with one in the middle part of the installation support arm on the outside of amesdial mounting hole is cracked, and support arm will be installed by cracking
Outer half section is divided into left half arm and right half arm, and vertical connection is provided with trip bolt in the horizontal direction between left half arm and right half arm
Realize the fastening to the detection bar fixed part of valve length detection amesdial.
So, installation that is simple in construction and conveniently realizing valve length detection amesdial is fixed.
As optimization, it is provided between sleeve lining and the guide rod outer wall and spacing rotation is circumferentially rotated for sleeve
Position limiting structure.
In such manner, it is possible to limit rotating in a circumferential direction for sleeve, avoid when sleeve height is adjusted because sleeve transfers to have an impact certainly.
As optimization, the rotary position limiting structure includes the vertical guiding raised line that evagination is formed at guide rod outer wall,
Also include positioned at sleeve lining and coordinate in the vertical guide groove being vertically oriented on raised line.
So, have it is simple in construction, be oriented to the advantages of reliable.
As optimization, height location structure is additionally provided with the sleeve, height location structure is used to realize sleeve height
Being locked after regulation.
So, height location structure can be relied on to realize after sleeve height regulation to be locked.Avoid in detection process
Sleeve height, which is touched, to change and influences accuracy of detection.It can better ensure that detection is accurate reliable.
Further, the height location structure, including an altitude location bolt, altitude location bolt it is horizontally disposed and
The level on sleeve is coordinated to run through in the positioning bolt hole set, altitude location bolt the inner is connected on guide rod outer wall
Realization is locked to sleeve portion.
So, have it is simple in construction, be locked the advantages that easy to operate reliable.
In summary, the utility model can conveniently realize the height regulation of valve length detection amesdial, and with knot
Structure is simple, easy to operate, adjusts the advantages of reliable and stable.
Brief description of the drawings
Fig. 1 is a kind of structure schematic diagram for employing air valve total length detection means of the present utility model, figure midsole portions
It is divided into section view status display.
Fig. 2 is Fig. 1 dimensional structure diagram.
Embodiment
Air valve total length detection means and its accompanying drawing embodiment of the present utility model are employed to this practicality with reference to one kind
It is new to be described in further detail.
Embodiment：
As shown in Figure 1-2, a kind of air valve total length detection means, including base 1, wherein, it is provided with engine valve stem on base 1
Vertical positioning fixture and valve length detection machine structure, the vertical positioning fixture of engine valve stem are arranged on base upper surface including one
Engine valve stem positioning seat 2, the upper surface of engine valve stem positioning seat 2 have an engine valve stem locating slot 3 opened up straight up, gas
Door rod portion locating slot 3 is used for the upward positioning for realizing engine valve stem；Valve length detection mechanism includes being fixedly installed on vertically
The guide rod 4 of base upper surface, guide rod 4 are movably socketed with a sleeve 5, positioned outside sleeve 5 in face of engine valve stem outside
The direction of seat is horizontally outward fixedly connected with an installation support arm 6, is set above the outer end face engine valve stem positioning seat of installation support arm 6
A valve length detection amesdial 7 is equipped with, the detector of valve length detection amesdial 7 straight down determine by face engine valve stem
Position groove is set；Height adjustment mechanism is additionally provided between sleeve 5 and guide rod 4, height adjustment mechanism can realize that sleeve is being led
Adjusted to the height and position on bar.
So, during detection, an air valve total length detection standard specimen is first prepared, the length of air valve total length detection standard specimen is total for valve
Valve length during long detection margin of tolerance minimum value, then bar portion that air valve total length is detected to standard specimen downwardly vertical are fixed to gas
In door rod portion locating slot, height adjustment mechanism is adjusted so that the detector lower end of valve length detection amesdial and air valve total length
Detection standard specimen upper surface contacts and adjusts zero；Then air valve total length detection standard specimen is removed, keeps valve length detection amesdial
Position is constant, and the bar portion of valve to be detected is downwardly vertical fixed in engine valve stem locating slot, makes its upper end end face gentle
End in contact detects under the detector of door length detection amesdial, reads valve length detection amesdial reading, you can according to valve
The length of overall length detection standard specimen converses air valve total length numerical value to be detected.Therefore with simple in construction, easy to operate, detection
The advantages that reliable.
Wherein, the middle part of installation support arm 6 is vertically provided with amesdial mounting hole, amesdial mounting hole aperture and valve length
Spend the detection bar fixed part external diameter of detection micrometer 7 unanimously and press from both sides the detection bar fixed part of valve length detection amesdial
If one is vertically provided with the middle part of installation support arm in the inner, on the outside of amesdial mounting hole cracks 8, cracking 8 will be outside installation support arm
Half section is divided into left half arm and right half arm, and vertical connection is provided with trip bolt 9 in the horizontal direction between left half arm and right half arm
Realize the fastening to the detection bar fixed part of valve length detection amesdial.
So, installation that is simple in construction and conveniently realizing valve length detection amesdial is fixed.
Wherein, the height adjustment mechanism includes a height adjustment bolt 10, the nut of the height adjustment bolt 10
Part and sleeve are installed with being coaxially disposed and can horizontally rotate is connected to the upper end of sleeve 5, coaxial in the middle part of the guide rod upper surface
Height regulation screwed hole straight down is provided with, the screw thread of height adjustment bolt 10 coordinates in height regulation screwed hole
It is interior.
So, height adjustment bolt need to only be rotated, you can coordinate by its screw thread between height regulation screwed hole
Height and position where changing height adjustment bolt, and then band moving sleeve realizes that upper-lower height is adjusted together.With simple in construction, tune
Save the advantages that convenient and swift reliable.
Wherein, the nut portion upper surface of the height adjustment bolt 10 vertically offers the adjustment hole of regular polygon.
So, regulation spanner corresponding to convenient insertion is realized is adjusted to the height of height adjustment bolt, makes its simple in construction
The compact setting height(from bottom) for not influenceing to interfere amesdial, and it is easy to adjust.
Wherein, it is provided between the inwall of sleeve 5 and guide rod 4 outer wall and spacing rotation limit is circumferentially rotated for sleeve
Bit architecture.
In such manner, it is possible to limit rotating in a circumferential direction for sleeve, avoid when sleeve height is adjusted because sleeve transfers to have an impact certainly.
Wherein, the rotary position limiting structure includes the vertical guiding raised line 11 that evagination is formed at guide rod outer wall, also
Including the vertical guide groove positioned at sleeve lining and cooperation on vertical guiding raised line.
So, have it is simple in construction, be oriented to the advantages of reliable.
Wherein, height location structure is additionally provided with the sleeve 5, height location structure is used to realize that sleeve height is adjusted
Being locked afterwards.
So, height location structure can be relied on to realize after sleeve height regulation to be locked.Avoid in detection process
Sleeve height, which is touched, to change and influences accuracy of detection.It can better ensure that detection is accurate reliable.
Wherein, the height location structure, including an altitude location bolt 12, altitude location bolt 12 it is horizontally disposed and
The level on sleeve 5 is coordinated to run through in the positioning bolt hole set, the inner of altitude location bolt 12 is connected to outside guide rod
Realized on wall and sleeve portion is locked.
So, have it is simple in construction, be locked the advantages that easy to operate reliable.
Wherein, the upper surface of base 1 is additionally provided with the positioning seat chute 13 of a strip, the engine valve stem positioning seat 2
Lower end is slidably fit into positioning seat chute 13, and one end of positioning seat chute 13 is the piece installing for loading valve to be detected
End, the installation support arm fall outside piece installing end in the vertical projection of base upper surface, and the positioning seat chute other end is face gas
Test side below door length detection amesdial.
So so that during detection, when valve length detection amesdial adjusts height position by air valve total length detection standard specimen
, can be first by engine valve stem positioning seat along slide to piece installing end, in the realization pair of piece installing end after putting and fixing and adjust zero
The dismounting of air valve total length detection standard specimen and the vertical installation of valve to be detected are fixed, and then move engine valve stem positioning seat edge again
Slide detects end in contact under the detector of the gentle door length detection amesdial in its upper surface to test side, reads valve length
Spend detection micrometer reading, you can the length that standard specimen is detected according to air valve total length converses air valve total length numerical value to be detected.Therefore
In such manner, it is possible to which more convenient realize the installation and detection for treating detection means, avoid component that fixation procedure is installed to testing result
Influence, preferably improve accuracy of detection and reliability.
Wherein, the length direction of positioning seat chute 13 is consistent with the length direction of installation support arm.So, its structure can be made more
Step up to gather, reduce the area of base, save consumptive material.
Wherein, the lower end of engine valve stem positioning seat 2 is cylindrical, the piece installing end and test side of the positioning seat chute 13
It is the semicircle of diameter and the lower end cylinder diameter matches of engine valve stem positioning seat 2.Positioning seat chute is so more facilitated to slide
Fitting positioning after moving in place.
Wherein, detection back-moving spring 14 is provided with the positioning seat chute along its length, detects back-moving spring 14 1
End and the test side of positioning seat chute abut, and the other end is connected with engine valve stem positioning seat lower end and supports engine valve stem positioning seat
It is connected on the piece installing end of positioning seat chute.
So, at the uniform velocity it is moved to test side by human hand when being detected after the piece installing of engine valve stem positioning seat and realizes detection, ensures inspection
Survey stability, need to only be loosed one's grip after detection, engine valve stem positioning seat can in the case where detecting action of reset spring quick sliding to piece installing end,
Inloading part piece installing is realized, it is very convenient quick, ensure that detection is reliable and stable and improves dress and change part efficiency.
Wherein, the detection back-moving spring 14 is helical spring, test side end wall and engine valve stem the positioning seat lower end
Corresponding detection back-moving spring 14 is provided with spring mounting hole in side wall, and the both ends insertion of the detection back-moving spring is arranged on bullet
In spring mounting hole.It so can conveniently realize that the installation of helical spring is fixed, improve efficiency of assembling and be beneficial to dismounting and change.
Wherein, when the lower end of engine valve stem positioning seat 2 is located at the test side of positioning seat chute, the detection back-moving spring
Two spring mounting holes can be compressed into connect in the space to be formed so that engine valve stem positioning seat lower end side and positioning seat are slided
The test side inwall of groove is affixed.It so can preferably be realized by test side inwall and test position is accurately positioned, it is both real
The installation settings of detection back-moving spring is showed to improve detection efficiency, has avoided positioning precision from being influenceed by spring again, ensure that
Detection was not only quick and convenient but also reliable and stable.
Wherein, there is the bottom land of engine valve stem locating slot 3 one to be used for and valve bottom contacts the positioning for realizing positioning
Face, the notch position of engine valve stem locating slot 3 be provided with a circle be used for realize to engine valve stem clamping elastomeric element 15.
So, valve position when, engine valve stem lower end extruding elastomeric element, and be inserted into engine valve stem locating slot bottom land and
Locating surface contacts, and is so clamped by elastomeric element, and can better ensure that will to the precision of valve positioning in the height direction
Ask, avoid valve end appearance and size error from impacting the precision in positioning height direction, ensure that the accuracy of detection.
Wherein, the elastomeric element 15 is that the circle elastomeric material for being fixedly installed on engine valve stem locating slot notch obtains.
So, simple in construction, beneficial to setting, cost is cheap and resilient clamp is reliable and stable.
Claims (7)
1. a kind of valve length detection mechanism, including the guide rod of base upper surface is fixedly installed on vertically, it can be lived outside guide rod
A sleeve is socketed with dynamicly, and being horizontally outward fixedly connected with one in face of the direction of engine valve stem positioning seat outside sleeve installs branch
Arm, installation support arm outer end face engine valve stem positioning seat top are provided with a valve length detection amesdial, the inspection of valve length
Survey the detector face engine valve stem locating slot setting straight down of amesdial；Height is additionally provided between sleeve and guide rod to adjust
Save mechanism, it is characterised in that the height adjustment mechanism includes a height adjustment bolt, the nut of the height adjustment bolt
Part and sleeve are installed with being coaxially disposed and can horizontally rotate is connected to sleeve upper end, is coaxially set in the middle part of the guide rod upper surface
Height regulation screwed hole straight down is equipped with, the height adjustment bolt screw thread coordinates in height regulation screwed hole.
2. valve length detection mechanism as claimed in claim 1, it is characterised in that the nut portion of the height adjustment bolt
Upper surface vertically offers the adjustment hole of regular polygon.
3. valve length detection mechanism as claimed in claim 1, it is characterised in that be vertically provided with the middle part of the installation support arm
The detection bar fixed part external diameter of amesdial mounting hole, amesdial mounting hole aperture and valve length detection amesdial is consistent and will
The detection bar fixed part sandwiched of valve length detection amesdial is in the inner, perpendicular in the middle part of the installation support arm on the outside of amesdial mounting hole
Cracked to being provided with one, crack and be divided into left half arm and right half arm by half section outside installation support arm, between left half arm and right half arm
Vertical connection is provided with trip bolt and realized to the tight of the detection bar fixed part of valve length detection amesdial in the horizontal direction
Gu.
4. valve length detection mechanism as claimed in claim 1, it is characterised in that sleeve lining and the guide rod outer wall it
Between be provided with spacing rotary position limiting structure circumferentially rotated for sleeve.
5. valve length detection mechanism as claimed in claim 4, it is characterised in that the rotary position limiting structure includes spirogyrate
Into in a vertically guiding raised line, in addition to be located at sleeve lining and coordinate and be vertically oriented to erecting on raised line of guide rod outer wall
To guide groove.
6. valve length detection mechanism as claimed in claim 1, it is characterised in that be additionally provided with altitude location on the sleeve
Structure, height location structure is for being locked after realizing sleeve height regulation.
7. valve length detection mechanism as claimed in claim 6, it is characterised in that the height location structure, including one
Altitude location bolt, altitude location bolt is horizontally disposed and coordinates horizontal through the positioning bolt hole set on sleeve
Interior, altitude location bolt the inner is connected to realization on guide rod outer wall and sleeve portion is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721208518.XU CN207163369U (en) | 2017-09-20 | 2017-09-20 | Valve length detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721208518.XU CN207163369U (en) | 2017-09-20 | 2017-09-20 | Valve length detection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163369U true CN207163369U (en) | 2018-03-30 |
Family
ID=61722578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721208518.XU Expired - Fee Related CN207163369U (en) | 2017-09-20 | 2017-09-20 | Valve length detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108781861A (en) * | 2018-05-14 | 2018-11-13 | 深圳市铁汉生态环境股份有限公司 | A kind of plant biological bag sample making apparatus and side slope plant biological bag tiling method |
-
2017
- 2017-09-20 CN CN201721208518.XU patent/CN207163369U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108781861A (en) * | 2018-05-14 | 2018-11-13 | 深圳市铁汉生态环境股份有限公司 | A kind of plant biological bag sample making apparatus and side slope plant biological bag tiling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20200920 |